Comparison of Beta and ANB Angles for Evaluation of Sagittal Skeletal Discrepancy: A Cephalometric Study.

Aim: Diagnosis in orthodontic cases and treatment planning is a precise assessment of sagittal jaw relationship. A number of angular and linear measurements have been used to attain correct diagnosis. The present study is done to compare beta angle and A point-nasion-B point (ANB) angle for sagittal skeletal discrepancies.

Effects of different ligature materials on friction in sliding mechanics.

Background: During orthodontic tooth movement friction occurs at the bracket wire interface. Out of the total force applied to the tooth movement, some of it is dissipated as friction, and the remainder is transferred to the supporting structures of the tooth to mediate tooth movement. However many factors affect friction, and method of arch wire ligation being an important contributing factor.

Peripheral ossifying fibroma: Series of five cases.

Peripheral ossifying fibroma (POF) is a reactive lesion of the gingival tissues that predominantly affects women and is usually located in the maxilla anterior to the molars. It originates from the cells of the periodontal ligament. The definitive diagnosis is established by histological examination, which reveals the presence of cellular connective tissue with focal calcifications.